Ethereum Papers book chapter
WTF are NFTs?
NFTs are objects that last forever in the Ethereum universe. It’s easier and more fun to think of Ethereum like the Marvel Cinematic Universe. The difference is Ethereum lives on the internet, involves real money, and in this universe, no one controls the story.
Each NFT is a kind of Infinity Stone. There can be many versions of an Infinity Stone, but each one has its own history. Each one has its own timeline and its own path, interacting with different characters.